ALIGN TECHNOLOGY INC — Director's Dealing 2017

May 18, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ALIGN TECHNOLOGY INC (AGN)
CIK: 0001097149
Period of Report: 2017-05-17

Reporting Person: Saia Andrea Lynn (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-17	Common Stock	M	5000	—	Acquired	18133	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-05-17	Restricted Stock Unit	$0.0001	M	5000	Disposed		Common Stock (5000)	Direct
2017-05-17	Restricted Stock Unit	$0.0001	A	3115	Acquired		Common Stock (3115)	Direct

Footnotes

F1: Represents par value of ALGN common stock

F2: 100% of the restricted stock unit granted on May 18, 2016 became vested on May 17, 2017 and shares were delivered to reporting person on May 17, 2017.

F3: 100% of the restricted stock unit will become vested upon the earlier of (1) one year after the date of grant or (2) the date of issuer's annual meeting of stockholders to be held in 2018. Shares will be delivered to reporting person on the vest date.